近几年,生产上栽植的速生杨品种有中林46杨、欧美107、欧美108杨、天演杨等。1、浇水。第一次浇水一般栽后立即进行,树坑挖的较深的或树根部已埋成土堆的要将土扒开,从而保证水浇足浇透到根部第二次浇水,沙土地隔7至10天一次,粘土地1 5天左右进行。栽后一 In recent years, the production of poplar varieties planted in Zhonglin 46 Yang, Europe and the United States 107, Europe and the United States 108 Yang, Tianyun Yang and so on. 1, watering. The first watering generally planted immediately after the excavation of the deeper roots or tree roots have been buried in the mound to the soil Pa to open, so as to ensure the water poured enough to pour the roots to the root of a second watering, sandy land Once every 7 to 10 days, the clay is about 15 days. After planting one